Answer :
Answer:
8x^3y^9
Step-by-step explanation:
just multiply 4 by 2. then, add each exponent. for example, there is x² and there is x, so do x² × x = x³. then do y³ × y^6 = y^9.

8x^3 y^9
multiply the 4 and 2 then add the exponents of the common variables
multiply the 4 and 2 then add the exponents of the common variables